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Labby

Develop skills in Linux, DevOps, Cybersecurity, Programming, Data Science, and more through interactive labs and real-world projects.

Location Hong Kong Joined Joined on  Personal website https://labex.io/ twitter website
Hands-On MongoDB: 3 Labs to Filter Collections, Create Schemas, and Model User Profiles
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Hands-On MongoDB: 3 Labs to Filter Collections, Create Schemas, and Model User Profiles

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2 min read

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5 Pandas Labs: Master .query(), E-commerce String Cleaning, and Advanced Data Filtering with .where()
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5 Pandas Labs: Master .query(), E-commerce String Cleaning, and Advanced Data Filtering with .where()

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3 min read
5 Python Projects for DevOps: Build a Network Scanner, Tkinter GUI, and Game Automation Scripts
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5 Python Projects for DevOps: Build a Network Scanner, Tkinter GUI, and Game Automation Scripts

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3 min read
4 NumPy Labs: Array Creation, Advanced Indexing, Vectorized KNN, and Gradient Edge Detection
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4 NumPy Labs: Array Creation, Advanced Indexing, Vectorized KNN, and Gradient Edge Detection

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3 min read
Scikit-Learn 4-Step Path: Mastering Classification with Naive Bayes, SVM, and Essential Metrics
Cover image for Scikit-Learn 4-Step Path: Mastering Classification with Naive Bayes, SVM, and Essential Metrics

Scikit-Learn 4-Step Path: Mastering Classification with Naive Bayes, SVM, and Essential Metrics

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3 min read
SQLite Mastery: 5 Labs on Database Backup, CTE Queries, and Linux Setup for Data Management
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SQLite Mastery: 5 Labs on Database Backup, CTE Queries, and Linux Setup for Data Management

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3 min read
Visualize Data Stories: 5 Matplotlib Labs on Subplots, Scatter, Pie Charts, and Histograms
Cover image for Visualize Data Stories: 5 Matplotlib Labs on Subplots, Scatter, Pie Charts, and Histograms

Visualize Data Stories: 5 Matplotlib Labs on Subplots, Scatter, Pie Charts, and Histograms

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2 min read
Nmap Mastery Path: 3 Hands-On Labs to Scan, Exploit Vulnerabilities, and Explore Verbosity Levels
Cover image for Nmap Mastery Path: 3 Hands-On Labs to Scan, Exploit Vulnerabilities, and Explore Verbosity Levels

Nmap Mastery Path: 3 Hands-On Labs to Scan, Exploit Vulnerabilities, and Explore Verbosity Levels

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2 min read
Red Hat Enterprise Linux: Hands-On Labs to Extend LVM, Troubleshoot SELinux Policy, and Master Shell Scripting
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Red Hat Enterprise Linux: Hands-On Labs to Extend LVM, Troubleshoot SELinux Policy, and Master Shell Scripting

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3 min read
Kali Linux Lab: Build Tool Directory, Nmap Port Scan, and Metasploit Console Start
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Kali Linux Lab: Build Tool Directory, Nmap Port Scan, and Metasploit Console Start

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2 min read
MongoDB Tutorial: Hands-On Labs to Create MongoDB Collection and Master NoSQL CRUD Operations
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MongoDB Tutorial: Hands-On Labs to Create MongoDB Collection and Master NoSQL CRUD Operations

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1 min read
Alibaba Cloud Hands-On: Build AI with TensorFlow, Automate IaC with Terraform, and Secure Websites with WAF
Cover image for Alibaba Cloud Hands-On: Build AI with TensorFlow, Automate IaC with Terraform, and Secure Websites with WAF

Alibaba Cloud Hands-On: Build AI with TensorFlow, Automate IaC with Terraform, and Secure Websites with WAF

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2 min read
Hands-On Kali Linux Setup: Verify Version, Environment, and Tool Directory Structure
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Hands-On Kali Linux Setup: Verify Version, Environment, and Tool Directory Structure

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2 min read
Optimizing C++ Fibonacci Performance, Fixing C++14 Bugs, and Singleton Design: 5 Hands-On Labs
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Optimizing C++ Fibonacci Performance, Fixing C++14 Bugs, and Singleton Design: 5 Hands-On Labs

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4 min read
MongoDB CRUD & Schema Design: 5 Labs to Write Queries, Filter, Delete, and Export Data
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MongoDB CRUD & Schema Design: 5 Labs to Write Queries, Filter, Delete, and Export Data

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2 min read
Docker Labs: Run Containers, Master Graceful Shutdown (Arctic Mission), and Image Repository Search
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Docker Labs: Run Containers, Master Graceful Shutdown (Arctic Mission), and Image Repository Search

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2 min read
Bash Scripting for Linux Sysadmins: Automate File Metadata, User Management, and Logic Patterns
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Bash Scripting for Linux Sysadmins: Automate File Metadata, User Management, and Logic Patterns

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2 min read
JavaScript Kickstart: 4 Hands-On Labs for CSS Selectors, Box Shadows, and Array Manipulation
Cover image for JavaScript Kickstart: 4 Hands-On Labs for CSS Selectors, Box Shadows, and Array Manipulation

JavaScript Kickstart: 4 Hands-On Labs for CSS Selectors, Box Shadows, and Array Manipulation

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2 min read
HTML Foundation to Full-Stack: 5 Labs Including Vue.js Task Manager and Flask URL Shortener
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HTML Foundation to Full-Stack: 5 Labs Including Vue.js Task Manager and Flask URL Shortener

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3 min read
Hands-On MongoDB Labs: Insert Data, Update Records (Operators), and Export Data Fast
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Hands-On MongoDB Labs: Insert Data, Update Records (Operators), and Export Data Fast

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2 min read
SQLite Mastery: Linux Setup, Efficient INNER/LEFT JOINs, and ON CONFLICT Error Handling
Cover image for SQLite Mastery: Linux Setup, Efficient INNER/LEFT JOINs, and ON CONFLICT Error Handling

SQLite Mastery: Linux Setup, Efficient INNER/LEFT JOINs, and ON CONFLICT Error Handling

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2 min read
5 MongoDB Labs: Filter, Sort, Export, and Delete Data Collections (Your First MongoDB Tutorial)
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5 MongoDB Labs: Filter, Sort, Export, and Delete Data Collections (Your First MongoDB Tutorial)

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2 min read
Python Path Experiments: Run Scripts from CLI, Configure Networks, and Uncover Object Secrets with __dict__
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Python Path Experiments: Run Scripts from CLI, Configure Networks, and Uncover Object Secrets with __dict__

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2 min read
Learn Nmap Network Port Scanning: Hands-On SYN Scans and Target Specification for Security Auditing
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Learn Nmap Network Port Scanning: Hands-On SYN Scans and Target Specification for Security Auditing

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2 min read
Golang Fundamentals: Master Multidimensional Arrays, Strings, and Constants with 4 Hands-On Labs
Cover image for Golang Fundamentals: Master Multidimensional Arrays, Strings, and Constants with 4 Hands-On Labs

Golang Fundamentals: Master Multidimensional Arrays, Strings, and Constants with 4 Hands-On Labs

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2 min read
4 JavaScript Projects: Build a React Heatmap, DOM Game, Prize Draw, and Voting App
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4 JavaScript Projects: Build a React Heatmap, DOM Game, Prize Draw, and Voting App

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3 min read
Jenkins Pipeline Tutorial: Git Integration, User Management & Declarative CI/CD in 5 Steps
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Jenkins Pipeline Tutorial: Git Integration, User Management & Declarative CI/CD in 5 Steps

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3 min read
Git Mastery Labs: Advanced Staging, History Rewriting, and Commit Manipulation Techniques
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Git Mastery Labs: Advanced Staging, History Rewriting, and Commit Manipulation Techniques

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2 min read
Scikit-learn Hands-On: 5 Projects from Iris k-NN to Credit Risk Prediction
Cover image for Scikit-learn Hands-On: 5 Projects from Iris k-NN to Credit Risk Prediction

Scikit-learn Hands-On: 5 Projects from Iris k-NN to Credit Risk Prediction

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3 min read
3 Hands-On Kali Linux Labs: Exploring Security Tools, Building Directory Structure, and Verifying System Version
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3 Hands-On Kali Linux Labs: Exploring Security Tools, Building Directory Structure, and Verifying System Version

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2 min read
Docker Swarm & Registry: Hands-On Guide to Packaging, Connecting & Orchestrating Apps
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Docker Swarm & Registry: Hands-On Guide to Packaging, Connecting & Orchestrating Apps

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3 min read
Ansible Core Modules: Hands-on Labs for get_url, cron, command, local_action
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Ansible Core Modules: Hands-on Labs for get_url, cron, command, local_action

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2 min read
NumPy Math Games: Master Array Indexing & Operations in Python
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NumPy Math Games: Master Array Indexing & Operations in Python

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2 min read
MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis
Cover image for MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis

MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis

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2 min read
C++ Labs: Build Calculator, Manipulate Strings, & Master Class Inheritance
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C++ Labs: Build Calculator, Manipulate Strings, & Master Class Inheritance

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2 min read
PostgreSQL Advanced Queries & Data Types: A Practical Guide to Robust Data Management
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PostgreSQL Advanced Queries & Data Types: A Practical Guide to Robust Data Management

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3 min read
HTML Text Formatting & Lists: Mastering Italic, Emphasized Text & Description Lists
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HTML Text Formatting & Lists: Mastering Italic, Emphasized Text & Description Lists

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2 min read
NumPy Arrays & Bitwise Ops: Create, Manipulate, and Explore with Python
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NumPy Arrays & Bitwise Ops: Create, Manipulate, and Explore with Python

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2 min read
RHEL 9 Hands-On: Logs, Permissions, Containers & Process Scheduling
Cover image for RHEL 9 Hands-On: Logs, Permissions, Containers & Process Scheduling

RHEL 9 Hands-On: Logs, Permissions, Containers & Process Scheduling

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2 min read
Kubernetes Hands-On: Annotate, Persistent Volumes, ConfigMaps, & RBAC Explained
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Kubernetes Hands-On: Annotate, Persistent Volumes, ConfigMaps, & RBAC Explained

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2 min read
Matplotlib Timeline & Hillshading: Advanced Plotting Techniques for Data Storytelling
Cover image for Matplotlib Timeline & Hillshading: Advanced Plotting Techniques for Data Storytelling

Matplotlib Timeline & Hillshading: Advanced Plotting Techniques for Data Storytelling

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2 min read
Nmap SYN Scans & Service Discovery: A Practical Guide for Cybersecurity Beginners
Cover image for Nmap SYN Scans & Service Discovery: A Practical Guide for Cybersecurity Beginners

Nmap SYN Scans & Service Discovery: A Practical Guide for Cybersecurity Beginners

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3 min read
Redis Mastery: Boost Performance with Lua Scripting & Fortify Security
Cover image for Redis Mastery: Boost Performance with Lua Scripting & Fortify Security

Redis Mastery: Boost Performance with Lua Scripting & Fortify Security

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2 min read
Cybersecurity Shell Scripting: Build Weather & Calculator Tools with Bash Loops & File Ops
Cover image for Cybersecurity Shell Scripting: Build Weather & Calculator Tools with Bash Loops & File Ops

Cybersecurity Shell Scripting: Build Weather & Calculator Tools with Bash Loops & File Ops

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3 min read
Redis Hands-On: Master Hashes, Persistence, Lua, & HyperLogLog with 5 Practical Labs
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Redis Hands-On: Master Hashes, Persistence, Lua, & HyperLogLog with 5 Practical Labs

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3 min read
MongoDB Hands-On: Delete Data, Create Indexes & Master Queries
Cover image for MongoDB Hands-On: Delete Data, Create Indexes & Master Queries

MongoDB Hands-On: Delete Data, Create Indexes & Master Queries

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2 min read
Java Data Transformation: Enum to String, List to Array, Stream to Array & More
Cover image for Java Data Transformation: Enum to String, List to Array, Stream to Array & More

Java Data Transformation: Enum to String, List to Array, Stream to Array & More

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3 min read
C Programming Labs: Dynamic Memory, Pointers & Global Variables for Data Analysis
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C Programming Labs: Dynamic Memory, Pointers & Global Variables for Data Analysis

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3 min read
MongoDB Data Operations: Filter, Insert, and Delete Collections
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MongoDB Data Operations: Filter, Insert, and Delete Collections

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2 min read
RHEL Lab: Conditional Scripting, User Management & LVM Storage
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RHEL Lab: Conditional Scripting, User Management & LVM Storage

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2 min read
Ansible Core Modules & Inventory: Script, Command, and Groups for IT Automation
Cover image for Ansible Core Modules & Inventory: Script, Command, and Groups for IT Automation

Ansible Core Modules & Inventory: Script, Command, and Groups for IT Automation

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2 min read
C++ Path Labs: Operators, Flow Control & Matrix Operations Tutorial
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C++ Path Labs: Operators, Flow Control & Matrix Operations Tutorial

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2 min read
Redis Essentials: Hands-On Key-Value & Data Management Tutorial
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Redis Essentials: Hands-On Key-Value & Data Management Tutorial

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2 min read
Hydra Tutorial: Hands-On Labs for Telnet & HTTP Credential Attacks
Cover image for Hydra Tutorial: Hands-On Labs for Telnet & HTTP Credential Attacks

Hydra Tutorial: Hands-On Labs for Telnet & HTTP Credential Attacks

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2 min read
Git Essentials: Create Repo, Delete Branches & Master Fixup Commits
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Git Essentials: Create Repo, Delete Branches & Master Fixup Commits

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2 min read
NumPy Path Experiments: Array Access, File I/O, and Advanced Numerical Computing
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NumPy Path Experiments: Array Access, File I/O, and Advanced Numerical Computing

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3 min read
MySQL Views & Window Functions: Advanced Data Analysis Techniques
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MySQL Views & Window Functions: Advanced Data Analysis Techniques

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2 min read
Redis Fundamentals: Hands-On Labs for Basic Data Management & Key-Value Operations
Cover image for Redis Fundamentals: Hands-On Labs for Basic Data Management & Key-Value Operations

Redis Fundamentals: Hands-On Labs for Basic Data Management & Key-Value Operations

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2 min read
Shell Path Experiments: Hands-On Tutorials for Linux Command History, User Search & Filesystem Monitoring
Cover image for Shell Path Experiments: Hands-On Tutorials for Linux Command History, User Search & Filesystem Monitoring

Shell Path Experiments: Hands-On Tutorials for Linux Command History, User Search & Filesystem Monitoring

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2 min read
Kali Linux Path Tutorial: Build Tool Directory, Manage Users & Files
Cover image for Kali Linux Path Tutorial: Build Tool Directory, Manage Users & Files

Kali Linux Path Tutorial: Build Tool Directory, Manage Users & Files

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2 min read
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